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US3565902A
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US
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1,2-dihydro-3h-imidazo(1,5-a)indol-3-ones and 3-thiones
Assignee: Wyeth Holdings LLC
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Filing: 1967-09-15
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Granted: 1971-02-23
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Expires: 1987-09-15
Abstract
Abstract THE PREPARATION OF SUBSTITUTED IMIDAZO(1.5-A)INDOL-3ONES, IMIDAZO(1.5A)INDOL-O-THIONES, INTERMEDIATES AND ADDITION SALTS, ARE DESCRIBED. THESE COMPOUNDS ARE USEFUL FOR THEIR CNS DEPRESSANT AND TRANQUILIZER PROPERTIES.
Inventors
- 👤 William Blythe Wright Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:49
CPC Classifications
C; C07; C07D; C07D487/00; C07D487/02; C07D487/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |